Latin name

Latin muscle parts

Group

Epaxial muscle – Erector spinae – Iliocostalis

Etymology

The English name for this muscle is the muscle between the groin, or flank, and the ribs in the loin region. The word iliocostalis comes from the Latin words ilium meaning “groin, or flank,” and costa meaning “rib.”Lumborum comes from the Latin lumbus for “loin.”

Origin

Posterior iliac crest and adjoining costal part of sacrum

Insertion

Tip of transverse processes of L1 to L5 and lower borders of ribs 6 to 12 near the angle